# git rev-parse -q --verify 3acbdbf42e943d85174401357a6b6243479d4c76^{commit}
3acbdbf42e943d85174401357a6b6243479d4c76
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3acbdbf42e943d85174401357a6b6243479d4c76
# git clean -qxdf
# < git log -1
# commit 3acbdbf42e943d85174401357a6b6243479d4c76
# Merge: 8834147f9505 9e05e95ca8da
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Jan 12 15:46:11 2022 -0800
# 
#     Merge tag 'libnvdimm-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
#     
#     Pull dax and libnvdimm updates from Dan Williams:
#      "The bulk of this is a rework of the dax_operations API after
#       discovering the obstacles it posed to the work-in-progress DAX+reflink
#       support for XFS and other copy-on-write filesystem mechanics.
#     
#       Primarily the need to plumb a block_device through the API to handle
#       partition offsets was a sticking point and Christoph untangled that
#       dependency in addition to other cleanups to make landing the
#       DAX+reflink support easier.
#     
#       The DAX_PMEM_COMPAT option has been around for 4 years and not only
#       are distributions shipping userspace that understand the current
#       configuration API, but some are not even bothering to turn this option
#       on anymore, so it seems a good time to remove it per the deprecation
#       schedule. Recall that this was added after the device-dax subsystem
#       moved from /sys/class/dax to /sys/bus/dax for its sysfs organization.
#       All recent functionality depends on /sys/bus/dax.
#     
#       Some other miscellaneous cleanups and reflink prep patches are
#       included as well.
#     
#       Summary:
#     
#        - Simplify the dax_operations API:
#     
#           - Eliminate bdev_dax_pgoff() in favor of the filesystem
#             maintaining and applying a partition offset to all its DAX iomap
#             operations.
#     
#           - Remove wrappers and device-mapper stacked callbacks for
#             ->copy_from_iter() and ->copy_to_iter() in favor of moving
#             block_device relative offset responsibility to the
#             dax_direct_access() caller.
#     
#           - Remove the need for an @bdev in filesystem-DAX infrastructure
#     
#           - Remove unused uio helpers copy_from_iter_flushcache() and
#             copy_mc_to_iter() as only the non-check_copy_size() versions are
#             used for DAX.
#     
#        - Prepare XFS for the pending (next merge window) DAX+reflink support
#     
#        - Remove deprecated DEV_DAX_PMEM_COMPAT support
#     
#        - Cleanup a straggling misuse of the GUID api"
#     
#     * tag 'libnvdimm-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (38 commits)
#       iomap: Fix error handling in iomap_zero_iter()
#       ACPI: NFIT: Import GUID before use
#       dax: remove the copy_from_iter and copy_to_iter methods
#       dax: remove the DAXDEV_F_SYNC flag
#       dax: simplify dax_synchronous and set_dax_synchronous
#       uio: remove copy_from_iter_flushcache() and copy_mc_to_iter()
#       iomap: turn the byte variable in iomap_zero_iter into a ssize_t
#       memremap: remove support for external pgmap refcounts
#       fsdax: don't require CONFIG_BLOCK
#       iomap: build the block based code conditionally
#       dax: fix up some of the block device related ifdefs
#       fsdax: shift partition offset handling into the file systems
#       dax: return the partition offset from fs_dax_get_by_bdev
#       iomap: add a IOMAP_DAX flag
#       xfs: pass the mapping flags to xfs_bmbt_to_iomap
#       xfs: use xfs_direct_write_iomap_ops for DAX zeroing
#       xfs: move dax device handling into xfs_{alloc,free}_buftarg
#       ext4: cleanup the dax handling in ext4_fill_super
#       ext2: cleanup the dax handling in ext2_fill_super
#       fsdax: decouple zeroing from the iomap buffered I/O code
#       ...
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 3acbdbf42e943d85174401357a6b6243479d4c76
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc11
# Build took: 0:06:34.754382